• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

This would look a little nicer than the current animation. It would make the animations similar to the BarChart animations.

*Note: This was previously covered in #559. That issue was closed, but no solution was given and it doesn't seem to have been implemented.)

What does the proposed API look like?

I would like an animationDirection property to be added to <Area>

<Area animationDirection="vertical" />